﻿144 
  C. 
  Bancs 
  — 
  Continuity 
  of 
  Solid 
  and 
  Liquid. 
  

  

  of 
  volume, 
  and 
  consequently 
  without 
  volume 
  lag. 
  In 
  case 
  of 
  

   naphthalene 
  the 
  position 
  of 
  this 
  point 
  may 
  be 
  conjectured 
  at 
  

   several 
  hundred 
  degrees 
  centigrade 
  and 
  several 
  thousand 
  (5000 
  

   to 
  10,000) 
  atmospheres. 
  

  

  6'1 
  

  

  -1000 
  

  

  f* 
  ' 
  X 
  * 
  W-^-litO 
  140° 
  160° 
  180° 
  Z0(f 
  220=-*W- 
  

  

  r 
  4(T 
  4fe 
  cc 
  4|4 
  CC 
  <# 
  c 
  48 
  cc 
  5b 
  cc 
  ^ 
  co 
  5^" 
  

  

  27. 
  Solidifying 
  points 
  and 
  melting 
  points. 
  — 
  The 
  cycles 
  

   depicted 
  in 
  figure 
  2 
  have 
  two 
  prominent 
  characteristics 
  : 
  They 
  

   gradually 
  decrease 
  in 
  vertical 
  extent 
  from 
  left 
  to 
  right 
  and 
  they 
  

   gradually 
  decrease 
  in 
  lateral 
  extent 
  from 
  a 
  central 
  area 
  toward 
  

   both 
  sides 
  of 
  the 
  chart. 
  The 
  former 
  quality 
  has 
  already 
  been 
  

   interpreted. 
  § 
  25, 
  26. 
  The 
  latter 
  is 
  now 
  to 
  be 
  considered. 
  

  

  Table 
  11. 
  — 
  Showing 
  the 
  relation 
  of 
  solidifying 
  point 
  and 
  of 
  melting 
  point 
  to 
  pres- 
  

   sure, 
  at 
  different 
  temperatures. 
  Naphthalene, 
  melting 
  at 
  S0°. 
  

  

  

  Temperature 
  83°. 
  

  

  Temperature 
  90°. 
  

  

  Temperat're 
  100°. 
  

  

  Temp. 
  117°. 
  

  

  Temperat're 
  130°. 
  

  

  Series. 
  

  

  

  

  

  | 
  

  

  

  

  

  Solid 
  at 
  

  

  Melting 
  

   at 
  

  

  Solid 
  

  

  at 
  

  

  Melting 
  

   at 
  

  

  Solid 
  Melting 
  

  

  at 
  i 
  at 
  

  

  Melting 
  at 
  

  

  Solid 
  Melting 
  

   at 
  at 
  

  

  

  atm. 
  atm. 
  

  

  atm. 
  

  

  atm. 
  

  

  atm. 
  atm. 
  

  

  atm. 
  

  

  atm. 
  atm. 
  

  

  I 
  

  

  *a260 
  

  

  80 
  

  

  «550 
  

  

  275 
  

  

  ! 
  a875 
  ! 
  5G0 
  

  

  

  al720 
  1430 
  

  

  II 
  

  

  *6320 
  

  

  80 
  

  

  6555 
  

  

  280 
  

  

  6920 
  560 
  

  

  

  61790 
  1465 
  

  

  III 
  

  

  a345 
  

  

  .. 
  

  

  

  

  

  

  870 
  580 
  

  

  

  fl665 
  1410 
  

  

  IV 
  

  

  

  

  -- 
  

  

  

  

  

  

  6900 
  570 
  ) 
  

  

  1050 
  

  

  «1720 
  

  

  i 
  Factor 
  : 
  M. 
  P. 
  and 
  pressure, 
  

   " 
  : 
  S. 
  P. 
  " 
  

   " 
  . 
  S. 
  P. 
  " 
  

   a, 
  Not 
  crept 
  upon. 
  6, 
  crept 
  

   series 
  II. 
  

  

  * 
  First 
  result 
  at 
  <83°, 
  second 
  and 
  third 
  at 
  >83°, 
  

   other 
  solidifications 
  take 
  place 
  at 
  once, 
  

   f 
  Temperature 
  129-6°. 
  

  

  80° 
  to 
  130°, 
  28-5 
  atm./°C, 
  or 
  -0351 
  °C./atm. 
  

  

  80° 
  to 
  100°, 
  36-0 
  atm./°C., 
  or 
  -0278 
  °C./atm. 
  

   100° 
  to 
  130°, 
  29 
  5 
  atm./°C, 
  or 
  -0339 
  °C./atm. 
  

   upon, 
  c, 
  Factors 
  taken 
  chiefly 
  with 
  reference 
  to 
  

  

  Solidificatiou 
  gradual, 
  the 
  

  

  